Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais duplas femininas tiveram o jogador de simples masculino Kenichi Tago?
 ###Tabelas: CREATE TABLE 21st_century (21st_century_id AUTO_INCREMENT PRIMARY KEY, Year INT, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR, Mixed doubles VARCHAR) CREATE TABLE 120_million_to_199_million_records (120_million_to_199_million_records_id AUTO_INCREMENT PRIMARY KEY, Artist VARCHAR, Country of origin VARCHAR, Period active VARCHAR, Release-year of first charted record INT, Genre VARCHAR, Claimed sales VARCHAR) CREATE TABLE c (c_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Nationality VARCHAR, Position VARCHAR, Years for Grizzlies VARCHAR, School/Club Team VARCHAR) CREATE TABLE 2011_2012_table (2011_2012_table_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Played VARCHAR, Drawn VARCHAR, Lost VARCHAR, Points for VARCHAR, Points against VARCHAR, Tries for VARCHAR, Tries against VARCHAR, Try bonus VARCHAR, Losing bonus VARCHAR, Points VARCHAR) CREATE TABLE players_in_the_nba (players_in_the_nba_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, WSU Year(s) VARCHAR, Position VARCHAR, Team VARCHAR, Pro Year(s) VARCHAR)  
SELECT Women's doubles FROM 21st_century WHERE Men's singles = kenichi tago